most hackers gain access by phishing or social engineering...the only other way is for someone to hack the database on your email providers server..which is definitely possible, but I highly doubt you will someone capable enough that would even be remotely interested in this. Have you tried contacting the email provider? You probably have a better shot with that. If you do happen to find a "hacker" with a pay-grade above simple phishing and or social engineering techniques, I would also like to speak to him.